SINCE 1828
uraninite
noun
ura·ni·nite
| \ yu̇-ˈrā-nə-ˌnīt
\
\
Definition of uraninite
: a black octahedral mineral that consists of an oxide of uranium which usually contains thorium, lead, and rare earth elements and is the chief ore of uranium
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More Definitions for uraninite
uraninite
noun
ura·ni·nite
| \ yu̇-ˈrā-nə-ˌnīt
\
\
Medical Definition of uraninite
: a mineral that is basically a black octahedral or cubic oxide of uranium containing lead, thorium, and rare earth elements and that is the chief ore of uranium
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